What does it mean if you break up with someone or refuse to have sex with someone or pursue anything with someone because they take too long to text you back or ignore texts outright?

What would you do if you found out someone was intentionally ignoring your texts or intentionally delaying responses to your texts? Just stop talking to them? What if you call them out on it and insult them over it, for having poor morals, etc.

What would you do if you texted a friend and they didn’t get back to you or took too long to get back? No longer be friends?